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23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study
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| Zeitschriftentitel: | Magnetic Resonance in Medicine |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Magnetic Resonance in Medicine, 84, 2020, 6, S. 3300-3307 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina |
|---|---|
| author |
Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina |
| spellingShingle |
Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina Magnetic Resonance in Medicine 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study Radiology, Nuclear Medicine and imaging |
| author_sort |
gomolka, ryszard s. |
| spelling |
Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina 0740-3194 1522-2594 Wiley Radiology, Nuclear Medicine and imaging http://dx.doi.org/10.1002/mrm.28333 <jats:sec><jats:title>Purpose</jats:title><jats:p>The aim of the current study was to compare the reproducibility of sodium (<jats:sup>23</jats:sup>Na)‐T<jats:sub>1</jats:sub> estimation using a centric‐reordered saturation recovery (SR) true fast imaging with steady‐state precession (TrueFISP) and a variable flip angle (VFA) spoiled gradient echo (GRE). Additionally, we evaluated the effect of spatial averaging on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimation by the two methods.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Measurements were performed in the phantom, consisting of 10 dm<jats:sup>3</jats:sup> volume rectangular polyethylene container filled with distilled water solution of 0.6% NaCl + 0.004% CuSO<jats:sub>4</jats:sub>, using a dual‐tunable <jats:sup>23</jats:sup>Na/<jats:sup>1</jats:sup>H coil at 3 Tesla. <jats:sup>23</jats:sup>Na images were acquired for FOV = 384 × 384 mm<jats:sup>2</jats:sup> and voxel size = 6 × 6 × 6 mm<jats:sup>3</jats:sup> using: (1) TrueFISP: TR/TE = 900/1.5 ms, flip angle = 90°, bandwidth = 450 Hz/px, and (2) GRE: TR/TE = 30/1.5 ms, bandwidth = 350 Hz/px. <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> weightings were obtained with nonselective saturation prepulses delayed from the center of the k‐space acquisition by 25/40/60/130/280 ms (SR‐TrueFISP) and by applying different nominal flip angles: 10°<jats:italic>/</jats:italic>30°<jats:italic>/</jats:italic>50°<jats:italic>/</jats:italic>70°<jats:italic>/</jats:italic>90° (VFA‐GRE). Both sequences were acquired twice, applying 20 and 30 spatial averages. The resulting images were B<jats:sub>1</jats:sub>‐corrected with a double‐angle GRE method.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Image acquisition varied from 5:41 to 9:37 for TrueFISP and from 12:48 to 19:12 min for GRE using 20 and 30 spatial averages, respectively. Higher averaging increased the acquisition time by 53% and mean SNR at scan < 10%, without an effect on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimations with both methods (SR‐Truefisp |Δ| = 1.58 ms, VFA‐GRE |Δ| = 0.53 ms; for SNR <jats:italic>P</jats:italic> < .001). Overall, mean ± SD of <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> was found as 51 ± 3 ms with SR‐TrueFISP and 53 ± 2 ms with VFA‐GRE.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Both SR‐TrueFISP and VFA‐GRE provided similar <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimates based on the phantom measurements with isotropic resolution.</jats:p></jats:sec> <sup>23</sup>Na‐T<sub>1</sub> quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study Magnetic Resonance in Medicine |
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10.1002/mrm.28333 |
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Online |
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| imprint |
Wiley, 2020 |
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Wiley, 2020 |
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0740-3194 1522-2594 |
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2020 |
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Wiley |
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Magnetic Resonance in Medicine |
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| title |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_unstemmed |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_full |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_fullStr |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_full_unstemmed |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_short |
23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_sort |
<sup>23</sup>na‐t<sub>1</sub> quantification with saturation recovery truefisp and variable flip angle gre at 3t: a phantom study |
| topic |
Radiology, Nuclear Medicine and imaging |
| url |
http://dx.doi.org/10.1002/mrm.28333 |
| publishDate |
2020 |
| physical |
3300-3307 |
| description |
<jats:sec><jats:title>Purpose</jats:title><jats:p>The aim of the current study was to compare the reproducibility of sodium (<jats:sup>23</jats:sup>Na)‐T<jats:sub>1</jats:sub> estimation using a centric‐reordered saturation recovery (SR) true fast imaging with steady‐state precession (TrueFISP) and a variable flip angle (VFA) spoiled gradient echo (GRE). Additionally, we evaluated the effect of spatial averaging on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimation by the two methods.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Measurements were performed in the phantom, consisting of 10 dm<jats:sup>3</jats:sup> volume rectangular polyethylene container filled with distilled water solution of 0.6% NaCl + 0.004% CuSO<jats:sub>4</jats:sub>, using a dual‐tunable <jats:sup>23</jats:sup>Na/<jats:sup>1</jats:sup>H coil at 3 Tesla. <jats:sup>23</jats:sup>Na images were acquired for FOV = 384 × 384 mm<jats:sup>2</jats:sup> and voxel size = 6 × 6 × 6 mm<jats:sup>3</jats:sup> using: (1) TrueFISP: TR/TE = 900/1.5 ms, flip angle = 90°, bandwidth = 450 Hz/px, and (2) GRE: TR/TE = 30/1.5 ms, bandwidth = 350 Hz/px. <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> weightings were obtained with nonselective saturation prepulses delayed from the center of the k‐space acquisition by 25/40/60/130/280 ms (SR‐TrueFISP) and by applying different nominal flip angles: 10°<jats:italic>/</jats:italic>30°<jats:italic>/</jats:italic>50°<jats:italic>/</jats:italic>70°<jats:italic>/</jats:italic>90° (VFA‐GRE). Both sequences were acquired twice, applying 20 and 30 spatial averages. The resulting images were B<jats:sub>1</jats:sub>‐corrected with a double‐angle GRE method.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Image acquisition varied from 5:41 to 9:37 for TrueFISP and from 12:48 to 19:12 min for GRE using 20 and 30 spatial averages, respectively. Higher averaging increased the acquisition time by 53% and mean SNR at scan < 10%, without an effect on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimations with both methods (SR‐Truefisp |Δ| = 1.58 ms, VFA‐GRE |Δ| = 0.53 ms; for SNR <jats:italic>P</jats:italic> < .001). Overall, mean ± SD of <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> was found as 51 ± 3 ms with SR‐TrueFISP and 53 ± 2 ms with VFA‐GRE.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Both SR‐TrueFISP and VFA‐GRE provided similar <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimates based on the phantom measurements with isotropic resolution.</jats:p></jats:sec> |
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| description | <jats:sec><jats:title>Purpose</jats:title><jats:p>The aim of the current study was to compare the reproducibility of sodium (<jats:sup>23</jats:sup>Na)‐T<jats:sub>1</jats:sub> estimation using a centric‐reordered saturation recovery (SR) true fast imaging with steady‐state precession (TrueFISP) and a variable flip angle (VFA) spoiled gradient echo (GRE). Additionally, we evaluated the effect of spatial averaging on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimation by the two methods.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Measurements were performed in the phantom, consisting of 10 dm<jats:sup>3</jats:sup> volume rectangular polyethylene container filled with distilled water solution of 0.6% NaCl + 0.004% CuSO<jats:sub>4</jats:sub>, using a dual‐tunable <jats:sup>23</jats:sup>Na/<jats:sup>1</jats:sup>H coil at 3 Tesla. <jats:sup>23</jats:sup>Na images were acquired for FOV = 384 × 384 mm<jats:sup>2</jats:sup> and voxel size = 6 × 6 × 6 mm<jats:sup>3</jats:sup> using: (1) TrueFISP: TR/TE = 900/1.5 ms, flip angle = 90°, bandwidth = 450 Hz/px, and (2) GRE: TR/TE = 30/1.5 ms, bandwidth = 350 Hz/px. <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> weightings were obtained with nonselective saturation prepulses delayed from the center of the k‐space acquisition by 25/40/60/130/280 ms (SR‐TrueFISP) and by applying different nominal flip angles: 10°<jats:italic>/</jats:italic>30°<jats:italic>/</jats:italic>50°<jats:italic>/</jats:italic>70°<jats:italic>/</jats:italic>90° (VFA‐GRE). Both sequences were acquired twice, applying 20 and 30 spatial averages. The resulting images were B<jats:sub>1</jats:sub>‐corrected with a double‐angle GRE method.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Image acquisition varied from 5:41 to 9:37 for TrueFISP and from 12:48 to 19:12 min for GRE using 20 and 30 spatial averages, respectively. Higher averaging increased the acquisition time by 53% and mean SNR at scan < 10%, without an effect on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimations with both methods (SR‐Truefisp |Δ| = 1.58 ms, VFA‐GRE |Δ| = 0.53 ms; for SNR <jats:italic>P</jats:italic> < .001). Overall, mean ± SD of <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> was found as 51 ± 3 ms with SR‐TrueFISP and 53 ± 2 ms with VFA‐GRE.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Both SR‐TrueFISP and VFA‐GRE provided similar <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimates based on the phantom measurements with isotropic resolution.</jats:p></jats:sec> |
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| spelling | Gomolka, Ryszard S. Ciritsis, Alexander Rossi, Cristina 0740-3194 1522-2594 Wiley Radiology, Nuclear Medicine and imaging http://dx.doi.org/10.1002/mrm.28333 <jats:sec><jats:title>Purpose</jats:title><jats:p>The aim of the current study was to compare the reproducibility of sodium (<jats:sup>23</jats:sup>Na)‐T<jats:sub>1</jats:sub> estimation using a centric‐reordered saturation recovery (SR) true fast imaging with steady‐state precession (TrueFISP) and a variable flip angle (VFA) spoiled gradient echo (GRE). Additionally, we evaluated the effect of spatial averaging on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimation by the two methods.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Measurements were performed in the phantom, consisting of 10 dm<jats:sup>3</jats:sup> volume rectangular polyethylene container filled with distilled water solution of 0.6% NaCl + 0.004% CuSO<jats:sub>4</jats:sub>, using a dual‐tunable <jats:sup>23</jats:sup>Na/<jats:sup>1</jats:sup>H coil at 3 Tesla. <jats:sup>23</jats:sup>Na images were acquired for FOV = 384 × 384 mm<jats:sup>2</jats:sup> and voxel size = 6 × 6 × 6 mm<jats:sup>3</jats:sup> using: (1) TrueFISP: TR/TE = 900/1.5 ms, flip angle = 90°, bandwidth = 450 Hz/px, and (2) GRE: TR/TE = 30/1.5 ms, bandwidth = 350 Hz/px. <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> weightings were obtained with nonselective saturation prepulses delayed from the center of the k‐space acquisition by 25/40/60/130/280 ms (SR‐TrueFISP) and by applying different nominal flip angles: 10°<jats:italic>/</jats:italic>30°<jats:italic>/</jats:italic>50°<jats:italic>/</jats:italic>70°<jats:italic>/</jats:italic>90° (VFA‐GRE). Both sequences were acquired twice, applying 20 and 30 spatial averages. The resulting images were B<jats:sub>1</jats:sub>‐corrected with a double‐angle GRE method.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Image acquisition varied from 5:41 to 9:37 for TrueFISP and from 12:48 to 19:12 min for GRE using 20 and 30 spatial averages, respectively. Higher averaging increased the acquisition time by 53% and mean SNR at scan < 10%, without an effect on <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimations with both methods (SR‐Truefisp |Δ| = 1.58 ms, VFA‐GRE |Δ| = 0.53 ms; for SNR <jats:italic>P</jats:italic> < .001). Overall, mean ± SD of <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> was found as 51 ± 3 ms with SR‐TrueFISP and 53 ± 2 ms with VFA‐GRE.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Both SR‐TrueFISP and VFA‐GRE provided similar <jats:sup>23</jats:sup>Na‐T<jats:sub>1</jats:sub> estimates based on the phantom measurements with isotropic resolution.</jats:p></jats:sec> <sup>23</sup>Na‐T<sub>1</sub> quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study Magnetic Resonance in Medicine |
| spellingShingle | Gomolka, Ryszard S., Ciritsis, Alexander, Rossi, Cristina, Magnetic Resonance in Medicine, 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study, Radiology, Nuclear Medicine and imaging |
| title | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_full | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_fullStr | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_full_unstemmed | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_short | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| title_sort | <sup>23</sup>na‐t<sub>1</sub> quantification with saturation recovery truefisp and variable flip angle gre at 3t: a phantom study |
| title_unstemmed | 23Na‐T1 quantification with saturation recovery TrueFISP and variable flip angle GRE at 3T: A phantom study |
| topic | Radiology, Nuclear Medicine and imaging |
| url | http://dx.doi.org/10.1002/mrm.28333 |